Every Portuguese citizenship claim by descent rests on records: your ancestor’s birth, the marriages and births down the line, and your own. Many applicants stall at the first step because they do not know where a particular certificate sits. In Portugal the answer depends mostly on one date, 1911, and on whether the record has been digitised. This guide explains where to look, how to request certificates from abroad, and what to do when the record is older or cannot be found.
Important: This article is general information for educational purposes, not legal advice. Portuguese nationality law is detailed and changed substantially in 2026, and any individual case depends on its particular facts. The position described here is current as of October 2026. Always verify your situation with the Portuguese authorities (the IRN, Instituto dos Registos e do Notariado, and the Conservatória dos Registos Centrais) or a qualified professional before acting.
The 1911 dividing line
Portugal’s Civil Registration Code of 18 February 1911 created the civil registry. Records from 1911 onward are civil entries held by the Conservatória do Registo Civil of the municipality, and many have been digitised. Records from before 1911 are mostly parish entries that were later moved into the state system, and they are generally held by the district archives or the Torre do Tombo once they pass about 100 years of age. Our guide to Portuguese civil registration and the one on parish records cover each period in more depth.
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Records from 1911 onward
- The Civil Online portal. If the entry has been digitised, you can order a certificate online and receive it electronically. Anyone can order a certificate for another person, so you do not need to be the person named.
- The Conservatória. For entries not yet digitised, contact the Conservatória of the municipality where the event took place, with the person’s full name, the type of record, the year and place, and the parents’ names.
- Consulates and embassies. A Portuguese consulate can issue certificates when the records are digitised. The embassy section in Washington has published a fee per certificate, but fees change, so check the current amount.
Published guides put the online request at around €10 and a paper certificate at around €20, but confirm current prices on the official portal.
Records from before 1911
For an ancestor born before 1911, the record you want is usually a baptism entry. Commentators note that pre-1911 baptism entries are treated as the legal equivalent of a birth certificate for civil registration purposes, including in citizenship cases. These records are requested from the district archive that holds the parish, or from the Torre do Tombo for the Lisbon district, and many have been digitised and can be browsed on the archives’ websites. Our guides to district archives and the Torre do Tombo, finding your ancestral parish and Azores and Madeira records show how to locate the right book.
Searching for the records? A free MyHeritage trial lets you search historical records and family trees for clues (affiliate link).
Ask for the full record, not a summary
A certificate comes in different forms. For citizenship, a short or summary certificate may not be accepted, because it may omit details such as the parents’ names. Ask for the full copy of the entry, and check that it shows the names of the parents, the date and place of the event, and any marginal notes. Marginal notes can matter: they record later events such as marriages. See the requirements and process guide for what the authorities expect, including apostilles and translations.
When the record cannot be found
- Check name variants. Portuguese naming conventions mean the same person may appear under different surname combinations (see naming conventions).
- Check nearby parishes and the other period. Records near the 1911 line can sit in either system.
- Try a different record. A marriage entry often gives the same information about parents.
- Use the family tree databases to find the parish before you write (see using FamilySearch for Portuguese records).
- Ask the archive. Staff can sometimes confirm whether a book survives.
Think you may qualify? Start with our citizenship guide, then build your document chain with the requirements and process article. Verify specifics with the IRN or a qualified adviser.
A practical order of work
- Identify the parish and municipality for each person.
- Decide which side of 1911 each record falls on.
- Order the digitised ones online first, since they are quickest.
- Request the archive records and allow time.
- Check every certificate against your family tree before you submit it.
Once the chain is assembled, the next step is the language certificate, covered in how to take the CIPLE exam from abroad, and the status of the new rules is covered in the still-pending nationality regulation.
